{"schema_version":"secwatch.filing_event.v1","accession":"0001628280-23-017420","form_type":"8-K","ticker":"PRME","cik":"0001894562","company_name":"Prime Medicine, Inc.","filed_at":"2023-05-11T23:59:59+00:00","discovered_at":"2026-05-14T18:03:41.530100+00:00","generated_at":"2026-06-15T04:59:11.230142+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Prime Medicine appoints Jeff Marrazzo to board of directors","bullets":["Jeff Marrazzo appointed as Class II director effective May 10, 2023, until 2024 annual meeting.","Granted stock options for 92,000 shares vesting in three equal annual installments.","Annual cash compensation of $40,000 for board service and $6,000 for Compensation Committee.","Also appointed to the Compensation Committee.","No arrangements or transactions requiring disclosure under Item 404(a)."],"urls":{"canonical":"https://secwatch.observer/filing/0001628280-23-017420","json":"https://secwatch.observer/filing/0001628280-23-017420.json","markdown":"https://secwatch.observer/filing/0001628280-23-017420.md","text":"https://secwatch.observer/filing/0001628280-23-017420.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1894562/000162828023017420/0001628280-23-017420-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1894562/000162828023017420/prme-20230510.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-15T04:59:11.230142+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"ce8b7839ca","claim":"Jeff Marrazzo was appointed as Director at Prime Medicine, Inc..","evidence_excerpt":"On May 10, 2023, the Board of Directors (the “Board”) of Prime Medicine, Inc. (the “Company”) appointed Jeff Marrazzo as a director of the Company.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1894562/000162828023017420/0001628280-23-017420-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}